P0336: Engine Speed Main Sensor - Rationality; Dtc: P0336 - Hino Motors HINO 155 series Workshop Manual

2–442

DTC: P0336

P0336: Engine speed main sensor (Crankshaft position sensor) - rationality
INFORMATION
Engine speed main sensor
1. Technical description
• The engine speed main sensor (crankshaft position sensor) consistently measures pulses from the engine speed
main sensor (crankshaft position sensor).
<Description of malfunction>
• Pulses from the engine speed main sensor (crankshaft position sensor) cannot be correctly sensed.
2. DTC set condition
(1) DTC detection condition
• Battery voltage is in the range of 10 V to 16 V.
• Engine speed of 500 r/min or more
(2) Judgement criteria
• Make a judgment when the abnormal number of engine speed main sensor pulses (not 56 pulses) per engine
revolution is continuously detected. For example, 50 seconds at 750 r/min
3. Reset condition
• After normal operation is restored.
4. Indication, warning or system control regulation when the DTC is set.
• MIL: ON
• SVS light: OFF
5. Symptoms on the vehicle when the DTC is set
<Symptoms on the vehicle due to backup control (fail safe function)>
• –
<Symptoms on the vehicle due to malfunction>
• –
6. Pre-inspection work
• Check that the battery voltage is in the normal range.
7. After-inspection work
• Clear all past DTCs.
• Check that no DTC is stored after test drive.
8. Estimated failure factors
• Abnormal resistance of sensor
• Improper pulses
• Sensor is disconnected from measuring site or sensing unit is malfunctioning (due to adhesion of dirt, damage,
etc.)
• Irregular contact (disconnection or poor fit of connector)
• Harness disconnection or short-circuit
ENGINE (J05E)/TROUBLESHOOTING
J0J
(NE-)
J0H
(NE+)
Engine ECU
ZTZ
(SNE)
1mA X3F
(NE-)
1mA XK4
(NE+)
EN01H02127030602016070
SHTS021270300408